9.3.3.3. Example: Determining the Switching Threshold for a Label Material
After selecting the panel function Sync.Sens.Level the contrast of the
inserted material (placed in the photoelectric sensor area) is shown on the
printer display. The left level value is the currently measured
sensor value (You’ll find more details in the previous sections.)
For all different contrast zones of the current material now sensor
values (level values in %) have to be measured. Place every specific zone of
the material in the photoelectric sensor area and read the level values.
Example: Self-adhesive material with black bars across the label
Zone of the inserted material: Sensor
measured value (level):
Label + liner + black bar 75 %
Label + liner 44 %
Liner (other names: carrier or backing) 12 %
Calculation of the Switching Threshold
The middle between the label level (incl. liner) and the liner
level has to be calculated:
(44% - 12%)/2 + 12% = 28%
In this example the switching threshold is to be set to the value 28 %.
The steps to set the Sync sensor level at the printer panel can be found on
the following page:
Graphical explanation for switching threshold setting:
Level
in %
44 Label (with liner)
Mean value is to be used as Switching threshold
12 Liner
0
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